Note 1: John W. Harrelson suggest that instead of "margarine" it should read "market". He says it's southern dialect, "go down to the store and get my market (ing) done". Thanks John;
Note 2: sock, when black men (usta) get their hair "processed" (see also John Lee Hooker's song Process) it required a tight wrapping (every night for protection in sleep). A hair sock did the job..